This Brand New 9003 / H4 10000K Xenon HID Conversion Kit is design to product up to 3 times more light output than the standard halogen light bulbs. With its extreme brightness, this Xenon HID Conversion Kit provides wider road coverage and covers up to 70% more of the road in front of your motorcycle. HID light bulbs also has longer lifespan than the traditional halogen light bulbs and usually can last for 4-6 years because the HID technology is more efficient and consume less power. Besides all the functional purpose, the Xenon HID Conversion Kit also adds the comestic perfection to your motorcycle. The kit includes 2 x Ballast, 2 x HID light bulbs, mounting brackets, hardware and instruction. NOTE: Your motorcycle may equip with stock XENON HID headlights or aftermarket projector headlights. The light bulbs for these kind of lights might be different from the light bulb model listed above. Please check your owner's manual or the motorcycle existing light bulbs to ensure the listed light bulbs are the one you need to purchase. Please feel free to contact us if you are not sure how to identify the light bulbs you need.